SIEMENS 6ES5312-5AA12 RO

Siemens SIMATIC S5 IM 312 Interface Module

Description

The 6ES5312-5AA12 is an IM 312 interface module for the robust Siemens SIMATIC S5 automation platform. Specifically designed for the S5-115U series, this module serves as the communication bridge between the central controller and expansion racks. It is an indispensable component for expanding system capabilities or maintaining existing legacy installations, ensuring reliable data exchange and system integrity.

Specifications

• Manufacturer: Siemens
• Product Family: SIMATIC S5
• System Compatibility: S5-115U
• Model: IM 312 Interface Module
• Part Number: 6ES5312-5AA12
• Function: Connection of expansion units (EG) to central controller (AG)

Label Info

• Siemens P/N: 6ES5312-5AA12 RO
• Additional ID: S-C79919-F3-B1

Application

This module is used in various industrial automation applications where the S5-115U PLC is deployed and requires expansion beyond the capacity of the main rack. It is vital for industries relying on proven, long-standing control systems.

Country of Origin

Germany

CO2 Impact

Opting for this pre-owned module over a new alternative saves an estimated 20.0 kg of CO2, contributing to a more sustainable industrial environment.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the function of the IM 312 module in a SIMATIC S5 system?

It functions as an interface module to connect an expansion unit (EG) to a central controller (AG), allowing for a greater number of I/O modules to be integrated into the system.

Is this module compatible with all S5 CPUs?

The 6ES5312-5AA12 is specifically designed for the SIMATIC S5-115U PLC system. Compatibility with other S5 series like the S5-135U or S5-155U may require different interface modules.

What does the pigtail cable with the large connector connect to?

The cable connects to the corresponding interface module in the expansion rack, establishing the physical communication link between the central and expansion units.

Last Update: Friday, March 13, 2026

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